广东石人嶂钨矿花岗岩类地质特征及与钨矿化关系探讨-矿产普查与勘探专业论文.docxVIP

IV IV Abstract ShiRenZhang tungsten deposit is a medium-sized、more typical five-story and quartz vein-type black tungsten deposit in the north-eastern part of north GuangDong tungsten mineralization centralism area. Due to long-term exploitation, the shallow resources of deposit have been depleted, so its resources are seriously crisis and how to explore replaced resources is urgent. Based on analysising and concluding predecessors’ and mine scientific research, exploration, production, information, this paper using of petrology, petrography, geochemistry, isotope geology and mineral deposits and other theoretical approaches, starting from the regional geological background, systematic research of the mining granite especially focus on hidden Lotus Mountain granite occurrence, petrologic characteristics, petrological geochemistry characteristics and the relations of tungsten mineralization and investigate the granite geodynamics background. The main achievements are briefly described below: ShiRenZhang tungsten deposit mainly development Lotus Mountain granite, Dongkoushan quartz-porphyry, Ganziyuan porphyritic muscovite granite and Wutongwo camptonite dykes, the Lotus Mountain granite which is closely related with the tungsten mineralization.The rock at the center of Lotus Mountain granite protrusions, the marginal face of the rock is muscovite granite and transitional face is two-mica granite. The Lotus Mountain granite could be classified as two magma intrusions, the early magma intrusion construction porphyritic fine-grained-two-mica granite and the late were monzogranite, which the relationship between the two body was intrusive contact. Combined with the study of rock petrographic, we can divide the late monzogranite into three types from top to bottom in the vertical, respectively, fine-grained-monzogranite, medium-fine-grained monzogranite and fine-grained muscovite granite, the contact relationship is transitional contact. Together with the porphyritic fine